Use the matrix capabilities of a graphing utility to find AB, if possible. 
Definitions:
Cardinal Traits
Fundamental personality characteristics that dominate and shape an individual's behavior and attitudes.
PEN Dimensions
A psychological theory focusing on three major traits of personality: Psychoticism, Extraversion, and Neuroticism.
Hans Eysenck
A British psychologist known for his theories on personality and intelligence, emphasizing genetics over environment.
Neurological Functioning
Refers to the proper operation of the nervous system, including the brain, spinal cord, and peripheral nerves, which enables thought, behavior, and bodily functions.
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